Analisis Dan Pemetaan Daerah Rawan Bencana Tanah Longsor Menggunakan Metode Anbalagan Berbasis Sistem Informasi Geografis Studi Kasus Kecamatan XIII Koto Kampar Kabupaten Kampar Provinsi Riau

Septio, Ghenady (2021) Analisis Dan Pemetaan Daerah Rawan Bencana Tanah Longsor Menggunakan Metode Anbalagan Berbasis Sistem Informasi Geografis Studi Kasus Kecamatan XIII Koto Kampar Kabupaten Kampar Provinsi Riau. Other thesis, Universitas Islam Riau.

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Abstract

Research Analysis and mapping of landslide-prone areas was carried out in the XIII district of Koto Kampar Riau, Kampar district, Riau Province. This study aims to determine the characteristics of landslide assessment and to determine the mapping of the zoning level of vulnerability to landslides using the anbalagan method. This study uses primary data and secondary data in the form of division of 5 analytical data from the Anbalagan method in the form of lithological data, slope slope, relative relief, land wetness, land cover and supporting data in the form of 2020 rainfall data. Analysis of landslide-prone areas in this study is processed. by using a geographic information system (GIS) that can assist the analysis in the form of breaking and classifying landslide-prone areas in the research area. Lithological analysis found loose deposited alluvium, acid igneous rock, especially granite, phyllite cylindrical slate, conglomerate, sandstone, mudstone breccia, gray limestone and wake conglomerate and turbidite. Slope analysis is flat 38%, gentle 21%, slightly steep 15%, steep 11% very steep 15%. The analysis of the relief is relatively low 64%, moderate 24% and high 11%. Analysis of flat residential land cover 1% area covered by dense forest 38%, area covered by plants not too dense 37%, area rarely covered with vegetation 9% and vacant land 6% Wetness analysis of dry land 21.29%, moist 38.23%, wet 24.77%, seepage 5.85% flowing 9.86%. Straightness analysis of the slope direction north 12.36% northeast 12.17% east 12% southeast 14.84% south 11.77% southwest 12.34% west 11.82% northwest 12.67%. The average rainfall data in 1 year is 111,088 mm. Landslide-prone areas in the XIII Koto Kampar district are divided into 5 categories, namely, very low susceptibility areas around 22.6%, low susceptibility 61.8%, moderate susceptibility 15.2%, high susceptibility 0.4% with the entire research area

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